diff --git a/device/dell/x86_64-dell_s6000_s1220-r0/installer.conf b/device/dell/x86_64-dell_s6000_s1220-r0/installer.conf
index a8fef61859..107095cdad 100644
--- a/device/dell/x86_64-dell_s6000_s1220-r0/installer.conf
+++ b/device/dell/x86_64-dell_s6000_s1220-r0/installer.conf
@@ -5,8 +5,8 @@ if [ "$install_env" = "onie" ]; then
 echo "Replace ONIE reboot with Dell reset commands"
 
 # set I2C GPIO mux
-echo 1 > /sys/class/gpio/export
-echo 2 > /sys/class/gpio/export
+[ -d /sys/class/gpio/gpio1 ] || echo 1 > /sys/class/gpio/export
+[ -d /sys/class/gpio/gpio2 ] || echo 2 > /sys/class/gpio/export
 echo out > /sys/class/gpio/gpio1/direction
 echo out > /sys/class/gpio/gpio2/direction
 echo 0 > /sys/class/gpio/gpio1/value